Update dependency xalan:xalan to v2.7.3 [SECURITY]

Author: renovate[bot]

src/it/xerces/pom.xml

@@ -22,7 +22,7 @@
     <dependency>
       <groupId>xalan</groupId>
       <artifactId>xalan</artifactId>
-      <version>2.7.2</version>
+      <version>2.7.3</version>
       <scope>runtime</scope>
     </dependency>
     <dependency>